Angiosperms have two separate gametophytes because
A) this is normal for alternation of generations.
B) one can survive and fertilize without the need for external water.
C) the microgametophyte is haploid and the megagametophyte is diploid.
D) these two structures allow fertilization without the need for external water.
E) this is normal for all sexually reproducing plants,where sperm are produced by microgametophytes and eggs by megagametophytes.
Correct Answer:
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Q12: A moth-pollinated flower is likely to have
A)lightly
Q13: Which component of the flowering plant is
Q14: Pollen grains are formed in _ and
Q15: The structures in the outermost ring of
Q16: Which of the following methods is used
Q18: What is the correct sequence for the
Q19: A megasporocyte is found in the
A)anther.
B)stigma.
C)ovule.
D)filament.
E)style.
Q20: Which of the flowering plant structures is
Q21: Bee-pollinated flowers
A)are red.
B)are predominately blue or yellow.
C)have
Q22: Monocots protect their first true leaves by
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